Remove currently unused ParamSpec code in Behave features stubs

import sys

from typing import Any

from typing import Iterator

from typing import Protocol

R = TypeVar("R")

R_co = TypeVar("R_co", covariant=True)

P = TypeVar("P", bound=None)

P_co = TypeVar("P_co", covariant=True)  # unused

# There's a lot of @overload-ed functions here as fixtures come in two varieties:

# 1) A @contextlib.contextmanager-like generator that yields an arbitrary object once.

#

# "use_fixture" allows both types of fixture callables to be used in the same way

if sys.version_info >= (3, 10) and False:

	# This depends on complete support of ParamSpec in mypy so is disabled for now.

	from typing import ParamSpec

	P = ParamSpec("P")

	class FixtureCoroutine(Protocol[C_con, P, R_co]):

		def __call__(self, _: C_con, /, *__a: P.args, **__k: P.kwargs) -> Iterator[R_co]: ...

	class FixtureFunction(Protocol[C_con, P, R_co]):

		def __call__(self, _: C_con, /, *__a: P.args, **__k: P.kwargs) -> R_co: ...

	@overload

	def use_fixture(

		fixture_func: FixtureCoroutine[C_con, P, R],

		context: C_con,

		*a: P.args,

		**k: P.kwargs,

	) -> R: ...

	@overload

	def use_fixture(

		fixture_func: FixtureFunction[C_con, P, R],

		context: C_con,

		*a: P.args,

		**k: P.kwargs,

	) -> R: ...

else:

# Without ParamSpec no checking is done to ensure the arguments passed to use_fixture

# match the fixture's arguments; fixtures must be able to handle arguments not being

# supplied (except the context); and fixtures must accept ANY arbitrary keyword

# arguments.

	P = TypeVar("P", bound=None)

	P_co = TypeVar("P_co", covariant=True)  # unused

class FixtureCoroutine(Protocol[C_con, P_co, R_co]):

	def __call__(self, _: C_con, /, *__a: Any, **__k: Any) -> Iterator[R_co]: ...